Mostrando ítems 1-10 de 14
A joint-product analysis of the adoption of modern cereal varieties in developing countries
Semi-dwarf wheat varieties have been slow to diffuse in some regions despite their superior grain yield. This paper analyses varietal differences in yields of the joint products of grain and straw, the decision to adopt ...
Impacts of international wheat breeding research in the developing world, 1966-90
1986-90. Overall, varieties originating directly from CIMMYT crosses or from NARS crosses using a CIMMYT parent occupy 40 million hectares of wheat in the developing world. It is estimated that adoption of MVs from 1977 ...
Has the green revolution been sustained? The quantitative impact of the seed-fertilizer revolution in Pakistan revisited
Quantitative impacts of the Green Revolution on food production in the Pakistan Punjab are reviewed and the effects of different technologies on wheat yields over the past two decades decomposed. New quantitative evidence ...
Research for marginal environments: Are we underinvested?
Evidence is presented to show that adoption of modern wheat varieties in rainfed marginal environments of the developing world has lagged substantially compared to adoption in favoured well-watered areas. Possible reasons ...
Technical change in maize production : a global perspective
Past and potential impacts of maize research in Sub-Saharan Africa: A critical assessment
Over the past twenty years, research progress in maize, the single most important food staple in sub-Saharan Africa, has been comparable to progress in other primarily smallholder maize systems in the developing world, ...